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Utility transformers

Electronic Transformer - Power Transformer The two broadest categories of power transformers are the electric utility power transformers and electronic power transformers (1 & 3 phase). Utility transformers are almost entirely A.C. sinewave transformers. An electronic power transformer is essentially any electronic transformer supplying power to electronic circuits. See #1. 1: http://www.butlerwinding.com [c1094897]